Could Dumb and Dumber To have found a better starlet to pop into the sequel??

Uh, considering Jennifer Lawrence is not only majorly talented but damn HIGHlarious, we think not!

And luckily for the film, they landed the occasionally klutzy J.Law for a cameo role, which she has apparently already completed.

We hear she stopped by the set for a day in Atlanta to film a cameo as a younger version of Kathleen Turner's character. And based on just that leeettle bit of info, we have no doubt it'll be AH-Mazing!

J.Law might be known for her Hunger Games role and Oscar-winning performance, but she's just as well known for being a straight-up goofball…